Innersole-forming machine



Oct. 18, 1927.

H. A. BALLARD I INNERSOLE FORMING MACHINE 2 sheets-sheet 1 Filed March 1'7. 1921 Oct. 18, 1927.

H. A. BALLARD INNERSOLE FORMING MACHINE 2 sheets-sheet 2 Filed March 17; 1921 jnvenior flZTT'ZG aifiaZZanwZ Z zww'? I '7 Y .1422 arneg/s Patented Oct. 18, 1927.

UNITED STATES PATENT OFFICE.

HARRIE A. BALLARD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO GENERAL SHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE,

INNERSOLE-FORMING MACHINE.

Application filed March 17, 1921. Serial Noi 452,947.

This invention relates to machines for forming a stitching rib on the inner sole of a welt shoe, the machine comprising in general a work support and feed member for feeding the work thereover and a pair of forming tools engaging on opposite sides of a pair of oppositely facing channel lips which are compacted into the desired contour thereby to form the rib.

In order to permit the ready insertion and removal of work, this invention contem plates the use of a depressible work support, and in conjunction therewith provision by which the forming tool engaging the inner side of the rib may be moved inwardly out of operative relation thereto simultaneously with the depression of the support.

For a more complete understanding of this invention together with other objects and advantageous, details and combinations of parts, reference may be had to the accompanying drawings illustrating an embodiment thereof, and in which 7 Figure 1 is a side elevation with parts in section of a rib-forming machine constructed according to this invention, the parts being in position to operate on a shoe sole.

Figure 2 is a similar view, but showing the work table depressed and the inner rib forming tool retracted.

Figure 8 is a fragmentary section through the marginal portion of an inner sole as prepared preliminary to the rib-forming operation.

Figure 4 is a similar section showing the relative positions oft-he rib-forming members during the operation of the machine.

Figure 5 is a similar section showing the rib as formed.

Referring to the drawings, A'represents a machine head carrying the operative machine parts and mounted on a bench or other support B. At 1 is shown a forwardly projecting bracket, within which is mounted for rotation and axially sliding motion a hollow vertical shaft 2, which carries at its upper end a work support or table 3 having a shank threaded into the shaft 2. Keyed to the shaft 2, but held from axial movement therewith, is a driving gear 4. A screw 5 is j ournaled at its upper portion within the lower end of shaft 2 and is threaded at its lower end into the enlarged upper end or head 6 of a plunger rod 7 which projects through a bushing 8 threaded through the base of the bracket 1. A coil spring 9 surrounds the rod 6, and bearing between the portion 6 and the base of the bracket nor mally retains the work support elevated. Rod 7 passes through a lug 10 fixed to the head A and carries threaded on its lower end a stop nut 11 held in position by a check nut 12. Below these nuts, rod 7 has an eye for the reception of the hooked upper end of the rod 13. Preferably, the head 6 is slidably keyed within the bracket 1 to prevent rotation therein.

The gear 4 above-mentioned meshes with a gear 14 fixed to an inclined shaft 15. At its upper end shaft 15 has fixed thereto a feed wheel 16 whichcontinuously engages the feather of an innersole supported on the table 3, and below the gear 14 carries a worm gear 17. Gear 17 meshes with and is actuated by a Worm 18 fixedvto an actuating shaft 19. Above feed wheel 16 is a forwardly and downwardly inclined slideway, in which is carried a slide 20, having fixed thereto at its forward end a forming hammer or die 210, which projects toward the upper surface of the work table as shown.

slide and formsanadjustable" stop for the rear end, thereof. A check nut 2 8 re- At its rear end slide 20 is operatively coni tains the stop inadjusted position, Slide 25 is normally held in engagement with the stop screw by means of a spring 29 engaging screws made fast in the slide' and the portion 26. Pivoted at 30 to the slide 25 is a lever 31 carrying at its forward end a sleeve 32. lidably mounted in the sleeve 32 is an inner die or rib-forming tool 33 having a shank 3 lprojecting through an adjusting nut thieaded in the upperen'd of the sleeve, this shank having at its upper end a pair of check nuts 36. A coil spring surrounds the shank 34 and bears between the lower portion of the tool and the nut 35 to hold the tool yieldingly downward as far as permitted by the check nuts 36. At'87 is shown a wear member. to take the side thrust imparted to the tool 33 in operation of theniachine. The rear end of leverfil has pivoted thereto the upper end ofa' conliecting rod 371 formed at its lower end as an eccentric strap for an eccentric 38 also hired to the shaft 19. v I

Fixed tothe slide 25 near its rear end is a pin 39, engageable by the upwardly extended arm d0 of a bell crank lever lpivoted to the head A at 42. To the other arm of lever L1 is connected the-upper end of a rod 43, A tr'e'adle leverfld is mounted within easy reach of the operator,,'and to this lever is connected the lower ends of the rods 13 and43. y l r V r The operation of this machine is as fo1- lows: v I

Referring to Figure 3 ,an inner sole'fblank is channeled inopposite directions about the margin at a and b to form a pair of oppositely extending channel li'ps 0 and (Z, the inner edge of lip cl being preferably trimmed away as shown. The operator now depresses the treadle, which, acting through the rods13 and .43, lowers the work; table and simul taneously moves slide 25 forwardly, away from the die 210, and brings thepar'ts into the relative positions shown in Figure 2. On rotation of the shaft 19, the die 210 is reciprocated in -itsslidewaytoward and from the surface of the worksupport throughveccentric 24am its connections, and the tool 33 is given a resilient tamping motion toward the work support and inwardly toward the dieor hammer 210 by the eccentrio 38 and its connections. The inner sole, channeled above described, is; now in serted inv the machine, the edge of the feed wheel '16 beingpositioned between the feather and the channel lip c' and the tool 34 inwardly of the lip The operatornow allows the treadle to rise under theactiorijof springs 9jand '29, which hr'ings the work support up to clamp the fe'ather;againstj the feed wheeland brings the tool 33; in position to turn up the sinner lipid. The hammer 21,0 a d thectool as now progressivelycompact the channel lipsbetween them into substantially thefor'ln sholwnin Figure 5'an1d impart thdfinal configuration to the inseam It will be noted that the lower face and edge of the inner lip are compacted into the same plane and that the outer lip is bent backwardly thereover with its edge in the same plane. This produces a rib having a downwardly and outwardly inclined inner face to form a guideway tor the channel guide ofthe sewing machine, while insuring a substantial thickness of stock to render the rib amply strong, to hold the stitching.

Having thus described. an embodiment of this invention, it should be evident to those skilled in the art that various changes and Inodfications nightbe made therein without departing from its spirit or scope as defined in-theappended claims.

I claim: l i V H w .1. In a machine of the class described, a depressible work table, a slide arranged above and at one side of said table, a ribforming tool pivoted to said slide and normally positioned to operate by movement about its pivot within the rib of an inner sole supported on said table, and means for simultaneously depressing said table and moving said slide to remove said tool from operative position. v a i 2. a machine of the class described, a depi'essible work support, a feed member ens gageable with the upper surface of the feather of an inner sole carried on said stipport, a reoiprocable hammer adjacent said feed member and positioned to form the outer face of therib of the inner solo, a slideway, a slidfe therein, an inner ribformingtool carried by said slide, a stop at one end of said way, means normally holding said slide in contact vith said stop with said tool in operative position relative to said rib,

atifeadle, and connections from said-treadle F to said work support and to said slide whereby, on depression of said treadle, said sup port is depressed and said tool retracted from operativerelation to said-rib to allow th resd insertion and removal of worln 3. In a machine of the class described, a depressible worksupport, a pair, of slide waysadjacent sa'id support, a slide in each slideway,a ribiorming hammer fixed to one of said slides, a tamping member pivotally connected to the other of said slides and mQvableaborit its pivot toward and from the, surface ofsaidwork support and] said hammer, and means for simultaneously depressing said work support andnioving said otl1er, slide to separate said table, hammer and tamping member from each'other( 4; a machine'ofthe class described, a depressilbl work'support, a pair or slide way atljaeeni said support, aslide in each slidewaji, a rib-forming lianiiner fixed to one of said slides, a tamping memberpivotally connected to the other of said slides, rheaiisjto reciprocate said fir'stslide, to inipart operative movemeiit' to said hammer t ll and to reek said camping member about its may be depressed and said other slide moved pivot whereby to compact the rib of an into retract sald tampm member from 0pner sole placed between said hammer and eratlve relation to sai hammer by actua- 10 member, a pin fixed to the other slide, a lever tion of said treadle.

engaging said pin, a treadle, and connec- In testimony whereof I have aflixed my t10ns from sald treadle to sald work supsignature.

port and said lever whereby said support HARRIE A; BALLARD. 

